Putter head



FIG. 1 is a top perspective view of my new design for a putter head;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a heel side view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a putter head, as shown and described. 